Abstract
In this study, a Ni50.8Ti49.2 single-walled component was prepared in-situ using double-wire + arc additive manufacturing using a substrate heated to 600 °C and TA1 and ER-Ni wires used as raw materials. The microstructure and properties of the component were thoroughly investigated. The results revealed that Ni4Ti3 precipitated mainly in spherical and needle-like forms, contributing to improved component strength through coherent strain strengthening and lattice distortion, respectively. The maximum hardness value reached an impressive 531 HV0.2. DSC curves showed distinct transformation temperatures: As = −24.8 °C, Af = 11.7 °C, Ms = 12.5 °C, and Mf = −28.1 °C. The presence of the precipitated phase altered the Ni content of the matrix, leading to overlapping peaks during the phase transformation process. After 15 cycles of compression, the component exhibited an unrecoverable strain approaching 1.75 %, demonstrating a certain degree of superelasticity.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
